//
//  CK_MenuViewController.m
//  MenuDemo
//
//  Created by 陈凯 on 16/4/14.
//  Copyright © 2016年 鸥！陈凯. All rights reserved.
//

#import "CK_MenuViewController.h"

// 抽屉展开的程度
#define kMenuLeftWidth [UIScreen mainScreen].bounds.size.width * 0.7

@interface CK_MenuViewController ()<UITableViewDataSource, UITableViewDelegate>

// 默认左侧tableView
@property (nonatomic, strong) UITableView *leftTableView;
@property (nonatomic, assign) NSInteger index;
@end

@implementation CK_MenuViewController
// 判断当前是否展开
- (BOOL)isShowing {
    if (self.centerViewController.view.transform.tx > 0) {
        return YES;
    }
    return NO;
}
// 初始化方法
static CK_MenuViewController *CK_menuVC = nil;
+ (instancetype)instanceWithLeftViewController:(UIViewController *)leftVC CenterViewController:(UIViewController *)centerVC {
    @synchronized(self) {
        if (!CK_menuVC) {
            
            CK_menuVC = [[CK_MenuViewController alloc]init];
            // 设置window的rootViewController
            [UIApplication sharedApplication].keyWindow.rootViewController = CK_menuVC;
            // 设置属性
            CK_menuVC.leftViewController = leftVC;
            CK_menuVC.centerViewController = centerVC;
            // 添加子视图控制器和子视图
            if (leftVC) {
                [CK_menuVC addChildViewController:leftVC];
                [CK_menuVC.view addSubview:leftVC.view];
            }else {
                [CK_menuVC setupLeftViewController];
            }
            if (centerVC) {
                [CK_menuVC addChildViewController:centerVC];
                [CK_menuVC.view addSubview:centerVC.view];
            }
        }
    }
    return CK_menuVC;
}
// 默认的菜单视图
- (void)setupLeftViewController {
    self.leftTableView = [[UITableView alloc]    initWithFrame:CGRectMake(-kMenuLeftWidth, 0, kMenuLeftWidth, self.view.frame.size.height) style:UITableViewStyleGrouped];
    // 设置数据源
    self.leftTableView.dataSource = self;
    // 代理
    self.leftTableView.delegate = self;
    
     self.leftTableView.backgroundColor = [UIColor clearColor];
   // [self.view setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"背景图"]]];
    self.view.backgroundColor = [UIColor clearColor];
    self.leftTableView.backgroundColor = [UIColor colorWithRed:37.0f/255.0 green:37.0f/255.0 blue:37.0f/255.0 alpha:0.95];
    
    [self.view addSubview:self.leftTableView];
}
#pragma mark - UITableViewDataSource
// 数据源代理方法
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return self.menuArray.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *reuserID = @"cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:reuserID];
    if (!cell) {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:reuserID];
    }
    cell.textLabel.text = self.menuArray[indexPath.row];
    
    if (indexPath.row == self.index) {
        cell.textLabel.textColor =[UIColor whiteColor];
    }else{
        cell.textLabel.textColor = [UIColor blackColor];
    }
    cell.textLabel.backgroundColor = [UIColor clearColor];
    cell.backgroundColor = [UIColor clearColor];
    return cell;
}
// menuArray的setter方法
- (void)setMenuArray:(NSMutableArray *)menuArray {
    if (_menuArray != menuArray) {
        _menuArray  = nil;
        _menuArray  = menuArray;
        [self.leftTableView reloadData];
    }
}

#pragma mark - UITableViewDelegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    // 取消选中状态
    [tableView deselectRowAtIndexPath:indexPath animated:YES];
    //选中变白色
    self.index = indexPath.row;
    [tableView reloadData];
    
    // 代理 传值
    if ([self.menuDelegate respondsToSelector:@selector(didClickMenuIndex:Title:)]) {
        [self.menuDelegate didClickMenuIndex:indexPath.row Title:self.menuArray[indexPath.row]];
    }
    // 关闭抽屉
    [self hideLeftViewController];
}

// 获取抽屉方法
+ (instancetype)getMenuViewController {
    return CK_menuVC;
}

// 展示左侧菜单
- (void)showLeftViewController {
    // 动画展开
    [self showLeftViewController:0.7];
}
- (void)showLeftViewController:(CGFloat)duration{
    [UIView animateWithDuration:duration animations:^{
        self.centerViewController.view.transform = CGAffineTransformMakeTranslation(kMenuLeftWidth, 0);
        self.leftViewController.view.transform = CGAffineTransformMakeTranslation(kMenuLeftWidth, 0);
        self.leftTableView.transform = CGAffineTransformMakeTranslation(kMenuLeftWidth, 0);
    }];

}
// 关闭左侧菜单
- (void)hideLeftViewController {
    [self hideLeftViewController:0.7];
}
- (void)hideLeftViewController:(CGFloat)duration {
    // 动画关闭
    [UIView animateWithDuration:duration animations:^{
        self.centerViewController.view.transform = CGAffineTransformMakeTranslation(0, 0);
        self.leftViewController.view.transform = CGAffineTransformMakeTranslation(0, 0);
        self.leftTableView.transform = CGAffineTransformMakeTranslation(0, 0);
    }];
}
- (void)viewDidLoad {
    [super viewDidLoad];
    // 手势
    UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(panMenuWithPanGesture:)];
    [self.view addGestureRecognizer:pan];
  
}


// 静态变量保存初始状态
static CGPoint begin;
static CGAffineTransform transform;
- (void)panMenuWithPanGesture:(UIPanGestureRecognizer *)pan {
    // 位移量
    CGPoint translatePoint = CGPointZero;
    // 开始手势时的位置
    if (pan.state == UIGestureRecognizerStateBegan) {
        begin = [pan locationInView:self.view];
        transform = self.centerViewController.view.transform;
    }
    // 手势过程中的位置
    if (pan.state == UIGestureRecognizerStateChanged) {
        CGPoint end = [pan locationInView:self.view];
        translatePoint = CGPointMake(end.x - begin.x, 0);
    }
    // 手势结束时的位置
    if (pan.state == UIGestureRecognizerStateCancelled || pan.state == UIGestureRecognizerStateEnded) {
        if ([pan velocityInView:self.view].x > 0) {
            // 动画设置动画时长
            [self showLeftViewController:0.13];
        }else {
            [self hideLeftViewController:0.13];
        }
        return;
    }
    // 手势过程中，对视图进行位移
    if(self.centerViewController.view.transform.tx >= 0 && self.centerViewController.view.transform.tx <= kMenuLeftWidth) {
        self.centerViewController.view.transform = CGAffineTransformTranslate(transform, translatePoint.x, 0);
        self.leftViewController.view.transform = CGAffineTransformTranslate(transform,translatePoint.x, 0);
        self.leftTableView.transform = CGAffineTransformTranslate(transform, translatePoint.x, 0);
    }
}

- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
    return 100;
}

#pragma mark - 头像
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
    UIView *headerView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, kMenuLeftWidth*0.3, 30)];
    
    
    UIButton *imageBtn = [UIButton buttonWithType:(UIButtonTypeCustom)];
    [imageBtn setFrame:CGRectMake(20, 70, kMenuLeftWidth*0.2, kMenuLeftWidth*0.2)];
    [imageBtn setImage:[UIImage imageNamed:@"个人"] forState:(UIControlStateNormal)];
    [imageBtn addTarget:self action:@selector(imageBtnAction) forControlEvents:UIControlEventTouchUpInside];
    imageBtn.showsTouchWhenHighlighted = YES;
    [headerView addSubview:imageBtn];
    
    
    UIButton *loginBtn = [UIButton buttonWithType:(UIButtonTypeCustom)];
    [loginBtn setFrame:CGRectMake(80, 80, kMenuLeftWidth*0.3, 30)];
    [loginBtn setTitle:@"登录 /" forState:UIControlStateNormal];
    [loginBtn setTitleColor:[UIColor whiteColor] forState:(UIControlStateNormal)];
    [loginBtn addTarget:self action:@selector(loginBtnAction) forControlEvents:UIControlEventTouchUpInside];
    loginBtn.showsTouchWhenHighlighted = YES;
    [headerView addSubview:loginBtn];
    
    UIButton *registeredBtn = [UIButton buttonWithType:(UIButtonTypeCustom)];
    [registeredBtn setFrame:CGRectMake(120, 80, kMenuLeftWidth*0.3, 30)];
    [registeredBtn setTitle:@"  注册" forState:UIControlStateNormal];
    [registeredBtn setTitleColor:[UIColor whiteColor] forState:(UIControlStateNormal)];
    [registeredBtn addTarget:self action:@selector(registeredBtnAction) forControlEvents:UIControlEventTouchUpInside];
    registeredBtn.showsTouchWhenHighlighted = YES;
    [headerView addSubview:registeredBtn];

    
    UIButton *searchBtn = [UIButton buttonWithType:(UIButtonTypeCustom)];
    [searchBtn setFrame:CGRectMake(10, 20, kMenuLeftWidth*0.15, 30)];
    [searchBtn setImage:[UIImage imageNamed:@"搜索"] forState:(UIControlStateNormal)];
    [searchBtn setTitleColor:[UIColor whiteColor] forState:(UIControlStateNormal)];
    [searchBtn addTarget:self action:@selector(searchBtnAction) forControlEvents:UIControlEventTouchUpInside];
    [headerView addSubview:searchBtn];
    
    UIButton *downBtn = [UIButton buttonWithType:(UIButtonTypeCustom)];
    [downBtn setFrame:CGRectMake(kMenuLeftWidth*0.2+25, 20, kMenuLeftWidth*0.15, 30)];
    [downBtn setImage:[UIImage imageNamed:@"下载"] forState:(UIControlStateNormal)];
    [downBtn addTarget:self action:@selector(downBtnAction) forControlEvents:UIControlEventTouchUpInside];
    [downBtn setTitleColor:[UIColor whiteColor] forState:(UIControlStateNormal)];
    [headerView addSubview:downBtn];
    
    UIButton *collectionBtn = [UIButton buttonWithType:(UIButtonTypeCustom)];
    [collectionBtn setFrame:CGRectMake(kMenuLeftWidth*0.5+20, 20, kMenuLeftWidth*0.15, 30)];
    [collectionBtn setImage:[UIImage imageNamed:@"爱心"] forState:(UIControlStateNormal)];
    [collectionBtn setTitleColor:[UIColor whiteColor] forState:(UIControlStateNormal)];
    [collectionBtn addTarget:self action:@selector(collectionBtnAction) forControlEvents:UIControlEventTouchUpInside];
    [headerView addSubview:collectionBtn];

    UIButton *messageBtn = [UIButton buttonWithType:(UIButtonTypeCustom)];
    [messageBtn setFrame:CGRectMake(kMenuLeftWidth*0.75+20, 20, kMenuLeftWidth*0.15, 30)];
    [messageBtn setImage:[UIImage imageNamed:@"消息"] forState:(UIControlStateNormal)];
    [messageBtn setTitleColor:[UIColor whiteColor] forState:(UIControlStateNormal)];
    [messageBtn addTarget:self action:@selector(messageBtnAction) forControlEvents:UIControlEventTouchUpInside];
    [headerView addSubview:messageBtn];

    
    
    tableView.tableHeaderView = headerView;

    return headerView;
}

//个人头像
- (void)imageBtnAction
{
    NSLog(@"个人头像");
}

//登陆按钮
- (void)loginBtnAction
{
    NSLog(@"登陆按钮");
}

- (void)registeredBtnAction
{
    NSLog(@"注册按钮");
}


//搜索按钮
- (void)searchBtnAction
{
    NSLog(@"搜索按钮");
}

//下载按钮
- (void)downBtnAction
{
    NSLog(@"下载按钮");
}

//收藏按钮
- (void)collectionBtnAction
{
    NSLog(@"收藏按钮");
}

//评论按钮
- (void)messageBtnAction
{
    NSLog(@"评论按钮");
}






- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end
